Takahashi EM-100, serial number 6369
The EM-100 predates the current EM-10 and EM-200 mounts and is intermediate in size between them, although closer to the EM-200. It is rated for about a 30 lb load.
This is a very solid mount for a 4 inch refractor or a C-8. Can carry a heavier load for visual use. Includes dual axis drives and manual slow motion with clutches and knobs on both sides for both axes. Head weighs 25 lbs and comes with two 15 lb counterweights plus a spare cw shaft. One of the counterweights matches the mount, the other has different paint. Has a polar axis scope with an illuminated reticle. Original documentation (in Japanese) is included. Sturdy wooden Takahashi tripod with extendable legs. Mount has seen some use (small scratches and scuff marks) but works perfectly and is in very good condition overall.
$1500, includes shipping in conus.